<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .grid {
            display: grid;
            grid-template: 20px 20px / 20px 20px;
            grid-auto-rows: 50px;
            grid-auto-columns: 50px;
        }
    </style>
</head>
<body>
    <div class="grid">
        <div>1</div>
        <div>2</div>
        <div>3</div>
        <div>4</div>
        <div>5</div>
    </div>
</body>
</html>
